tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_ltdc.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32f4xx_hal_ltdc.c
   4   * @author  MCD Application Team
   5   * @version V1.1.0
   6   * @date    19-June-2014
   7   * @brief   LTDC HAL module driver.
   8   *          This file provides firmware functions to manage the following
   9   *          functionalities of the LTDC peripheral:
  10   *           + Initialization and de-initialization functions
  11   *           + IO operation functions
  12   *           + Peripheral Control functions
  13   *           + Peripheral State and Errors functions
  14   *
  15   @verbatim
  16   ==============================================================================
  17                         ##### How to use this driver #####
  18   ==============================================================================
  19     [..]
  20      (#) Program the required configuration through the following parameters:
  21          the LTDC timing, the horizontal and vertical polarity,
  22          the pixel clock polarity, Data Enable polarity and the LTDC background color value
  23          using HAL_LTDC_Init() function
  24
  25      (#) Program the required configuration through the following parameters:
  26          the pixel format, the blending factors, input alpha value, the window size
  27          and the image size using HAL_LTDC_ConfigLayer() function for foreground
  28          or/and background layer.
  29
  30      (#) Optionally, configure and enable the CLUT using HAL_LTDC_ConfigCLUT() and
  31          HAL_LTDC_EnableCLUT functions.
  32
  33      (#) Optionally, enable the Dither using HAL_LTDC_EnableDither().
  34
  35      (#) Optionally, configure and enable the Color keying using HAL_LTDC_ConfigColorKeying()
  36          and HAL_LTDC_EnableColorKeying functions.
  37
  38      (#) Optionally, configure LineInterrupt using HAL_LTDC_ProgramLineInterrupt()
  39          function
  40
  41      (#) If needed, reconfigure and change the pixel format value, the alpha value
  42          value, the window size, the window position and the layer start address
  43          for foreground or/and background layer using respectively the following
  44          functions: HAL_LTDC_SetPixelFormat(), HAL_LTDC_SetAlpha(), HAL_LTDC_SetWindowSize(),
  45          HAL_LTDC_SetWindowPosition(), HAL_LTDC_SetAddress.
  46
  47      (#) To control LTDC state you can use the following function: HAL_LTDC_GetState()
  48
  49      *** LTDC HAL driver macros list ***
  50      =============================================
  51      [..]
  52        Below the list of most used macros in LTDC HAL driver.
  53
  54       (+) __HAL_LTDC_ENABLE: Enable the LTDC.
  55       (+) __HAL_LTDC_DISABLE: Disable the LTDC.
  56       (+) __HAL_LTDC_LAYER_ENABLE: Enable the LTDC Layer.
  57       (+) __HAL_LTDC_LAYER_DISABLE: Disable the LTDC Layer.
  58       (+) __HAL_LTDC_RELOAD_CONFIG: Reload  Layer Configuration.
  59       (+) __HAL_LTDC_GET_FLAG: Get the LTDC pending flags.
  60       (+) __HAL_LTDC_CLEAR_FLAG: Clear the LTDC pending flags.
  61       (+) __HAL_LTDC_ENABLE_IT: Enable the specified LTDC interrupts.
  62       (+) __HAL_LTDC_DISABLE_IT: Disable the specified LTDC interrupts.
  63       (+) __HAL_LTDC_GET_IT_SOURCE: Check whether the specified LTDC interrupt has occurred or not.
  64
  65      [..]
  66        (@) You can refer to the LTDC HAL driver header file for more useful macros
  67
  68   @endverbatim
  69   ******************************************************************************
  70   * @attention
  71   *
  72   * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
  73   *
  74   * Redistribution and use in source and binary forms, with or without modification,
  75   * are permitted provided that the following conditions are met:
  76   *   1. Redistributions of source code must retain the above copyright notice,
  77   *      this list of conditions and the following disclaimer.
  78   *   2. Redistributions in binary form must reproduce the above copyright notice,
  79   *      this list of conditions and the following disclaimer in the documentation
  80   *      and/or other materials provided with the distribution.
  81   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  82   *      may be used to endorse or promote products derived from this software
  83   *      without specific prior written permission.
  84   *
  85   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  86   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  87   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  88   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  89   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  90   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  91   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  92   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  93   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  94   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  95   *
  96   ******************************************************************************
  97   */
  98
  99 /* Includes ------------------------------------------------------------------*/
 100 #include "stm32f4xx_hal.h"
 101
 102 /** @addtogroup STM32F4xx_HAL_Driver
 103   * @{
 104   */
 105 /** @defgroup LTDC
 106   * @brief LTDC HAL module driver
 107   * @{
 108   */
 109
 110 #ifdef HAL_LTDC_MODULE_ENABLED
 111
 112 #if defined(STM32F429xx) || defined(STM32F439xx)
 113
 114 /* Private typedef -----------------------------------------------------------*/
 115 /* Private define ------------------------------------------------------------*/
 116 /* Private macro -------------------------------------------------------------*/
 117 /* Private variables ---------------------------------------------------------*/
 118 /* Private function prototypes -----------------------------------------------*/
 119 static void LTDC_SetConfig(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLayerCfg, uint32_t LayerIdx);
 120 /* Private functions ---------------------------------------------------------*/
 121
 122 /** @defgroup LTDC_Private_Functions
 123   * @{
 124   */
 125
 126 /** @defgroup LTDC_Group1 Initialization and Configuration functions
 127  *  @brief   Initialization and Configuration functions
 128  *
 129 @verbatim
 130  ===============================================================================
 131                 ##### Initialization and Configuration functions #####
 132  ===============================================================================
 133     [..]  This section provides functions allowing to:
 134       (+) Initialize and configure the LTDC
 135       (+) De-initialize the LTDC
 136
 137 @endverbatim
 138   * @{
 139   */
 140
 141 /**
 142   * @brief  Initializes the LTDC according to the specified
 143   *         parameters in the LTDC_InitTypeDef and create the associated handle.
 144   * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
 145   *                the configuration information for the LTDC.
 146   * @retval HAL status
 147   */
 148 HAL_StatusTypeDef HAL_LTDC_Init(LTDC_HandleTypeDef *hltdc)
 149 {
 150   uint32_t tmp = 0, tmp1 = 0;
 151
 152   /* Check the LTDC peripheral state */
 153   if(hltdc == HAL_NULL)
 154   {
 155     return HAL_ERROR;
 156   }
 157
 158   /* Check function parameters */
 159   assert_param(IS_LTDC_ALL_INSTANCE(hltdc->Instance));
 160   assert_param(IS_LTDC_HSYNC(hltdc->Init.HorizontalSync));
 161   assert_param(IS_LTDC_VSYNC(hltdc->Init.VerticalSync));
 162   assert_param(IS_LTDC_AHBP(hltdc->Init.AccumulatedHBP));
 163   assert_param(IS_LTDC_AVBP(hltdc->Init.AccumulatedVBP));
 164   assert_param(IS_LTDC_AAH(hltdc->Init.AccumulatedActiveH));
 165   assert_param(IS_LTDC_AAW(hltdc->Init.AccumulatedActiveW));
 166   assert_param(IS_LTDC_TOTALH(hltdc->Init.TotalHeigh));
 167   assert_param(IS_LTDC_TOTALW(hltdc->Init.TotalWidth));
 168   assert_param(IS_LTDC_HSPOL(hltdc->Init.HSPolarity));
 169   assert_param(IS_LTDC_VSPOL(hltdc->Init.VSPolarity));
 170   assert_param(IS_LTDC_DEPOL(hltdc->Init.DEPolarity));
 171   assert_param(IS_LTDC_PCPOL(hltdc->Init.PCPolarity));
 172
 173   if(hltdc->State == HAL_LTDC_STATE_RESET)
 174   {
 175     /* Init the low level hardware */
 176     HAL_LTDC_MspInit(hltdc);
 177   }
 178
 179   /* Change LTDC peripheral state */
 180   hltdc->State = HAL_LTDC_STATE_BUSY;
 181
 182   /* Configures the HS, VS, DE and PC polarity */
 183   hltdc->Instance->GCR &= ~(LTDC_GCR_HSPOL | LTDC_GCR_VSPOL | LTDC_GCR_DEPOL | LTDC_GCR_PCPOL);
 184   hltdc->Instance->GCR |=  (uint32_t)(hltdc->Init.HSPolarity | hltdc->Init.VSPolarity | \
 185   hltdc->Init.DEPolarity | hltdc->Init.PCPolarity);
 186
 187   /* Sets Synchronization size */
 188   hltdc->Instance->SSCR &= ~(LTDC_SSCR_VSH | LTDC_SSCR_HSW);
 189   tmp = (hltdc->Init.HorizontalSync << 16);
 190   hltdc->Instance->SSCR |= (tmp | hltdc->Init.VerticalSync);
 191
 192   /* Sets Accumulated Back porch */
 193   hltdc->Instance->BPCR &= ~(LTDC_BPCR_AVBP | LTDC_BPCR_AHBP);
 194   tmp = (hltdc->Init.AccumulatedHBP << 16);
 195   hltdc->Instance->BPCR |= (tmp | hltdc->Init.AccumulatedVBP);
 196
 197   /* Sets Accumulated Active Width */
 198   hltdc->Instance->AWCR &= ~(LTDC_AWCR_AAH | LTDC_AWCR_AAW);
 199   tmp = (hltdc->Init.AccumulatedActiveW << 16);
 200   hltdc->Instance->AWCR |= (tmp | hltdc->Init.AccumulatedActiveH);
 201
 202   /* Sets Total Width */
 203   hltdc->Instance->TWCR &= ~(LTDC_TWCR_TOTALH | LTDC_TWCR_TOTALW);
 204   tmp = (hltdc->Init.TotalWidth << 16);
 205   hltdc->Instance->TWCR |= (tmp | hltdc->Init.TotalHeigh);
 206
 207   /* Sets the background color value */
 208   tmp = ((uint32_t)(hltdc->Init.Backcolor.Green) << 8);
 209   tmp1 = ((uint32_t)(hltdc->Init.Backcolor.Red) << 16);
 210   hltdc->Instance->BCCR &= ~(LTDC_BCCR_BCBLUE | LTDC_BCCR_BCGREEN | LTDC_BCCR_BCRED);
 211   hltdc->Instance->BCCR |= (tmp1 | tmp | hltdc->Init.Backcolor.Blue);
 212
 213   /* Enable the transfer Error interrupt */
 214   __HAL_LTDC_ENABLE_IT(hltdc, LTDC_IT_TE);
 215
 216   /* Enable the FIFO underrun interrupt */
 217   __HAL_LTDC_ENABLE_IT(hltdc, LTDC_IT_FU);
 218
 219   /* Enable LTDC by setting LTDCEN bit */
 220   __HAL_LTDC_ENABLE(hltdc);
 221
 222   /* Initialise the error code */
 223   hltdc->ErrorCode = HAL_LTDC_ERROR_NONE;
 224
 225   /* Initialize the LTDC state*/
 226   hltdc->State = HAL_LTDC_STATE_READY;
 227
 228   return HAL_OK;
 229 }
 230
 231 /**
 232   * @brief  Deinitializes the LTDC peripheral registers to their default reset
 233   *         values.
 234   * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
 235   *                the configuration information for the LTDC.
 236   * @retval None
 237   */
 238
 239 HAL_StatusTypeDef HAL_LTDC_DeInit(LTDC_HandleTypeDef *hltdc)
 240 {
 241   /* DeInit the low level hardware */
 242   HAL_LTDC_MspDeInit(hltdc);
 243
 244   /* Initialise the error code */
 245   hltdc->ErrorCode = HAL_LTDC_ERROR_NONE;
 246
 247   /* Initialize the LTDC state*/
 248   hltdc->State = HAL_LTDC_STATE_RESET;
 249
 250   /* Release Lock */
 251   __HAL_UNLOCK(hltdc);
 252
 253   return HAL_OK;
 254 }
 255
 256 /**
 257   * @brief  Initializes the LTDC MSP.
 258   * @param  hltdc : pointer to a LTDC_HandleTypeDef structure that contains
 259   *                the configuration information for the LTDC.
 260   * @retval None
 261   */
 262 __weak void HAL_LTDC_MspInit(LTDC_HandleTypeDef* hltdc)
 263 {
 264   /* NOTE : This function Should not be modified, when the callback is needed,
 265             the HAL_LTDC_MspInit could be implemented in the user file
 266    */
 267 }
 268
 269 /**
 270   * @brief  DeInitializes the LTDC MSP.
 271   * @param  hltdc : pointer to a LTDC_HandleTypeDef structure that contains
 272   *                the configuration information for the LTDC.
 273   * @retval None
 274   */
 275 __weak void HAL_LTDC_MspDeInit(LTDC_HandleTypeDef* hltdc)
 276 {
 277   /* NOTE : This function Should not be modified, when the callback is needed,
 278             the HAL_LTDC_MspDeInit could be implemented in the user file
 279    */
 280 }
 281
 282 /**
 283   * @}
 284   */
 285
 286 /** @defgroup LTDC_Group2 IO operation functions
 287  *  @brief   IO operation functions
 288  *
 289 @verbatim
 290  ===============================================================================
 291                       #####  IO operation functions  #####
 292  ===============================================================================
 293     [..]  This section provides function allowing to:
 294       (+) Handle LTDC interrupt request
 295
 296 @endverbatim
 297   * @{
 298   */
 299 /**
 300   * @brief  Handles LTDC interrupt request.
 301   * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
 302   *                the configuration information for the LTDC.
 303   * @retval HAL status
 304   */
 305 void HAL_LTDC_IRQHandler(LTDC_HandleTypeDef *hltdc)
 306 {
 307   /* Transfer Error Interrupt management ***************************************/
 308   if(__HAL_LTDC_GET_FLAG(hltdc, LTDC_FLAG_TE) != RESET)
 309   {
 310     if(__HAL_LTDC_GET_IT_SOURCE(hltdc, LTDC_IT_TE) != RESET)
 311     {
 312       /* Disable the transfer Error interrupt */
 313       __HAL_LTDC_DISABLE_IT(hltdc, LTDC_IT_TE);
 314
 315       /* Clear the transfer error flag */
 316       __HAL_LTDC_CLEAR_FLAG(hltdc, LTDC_FLAG_TE);
 317
 318       /* Update error code */
 319       hltdc->ErrorCode |= HAL_LTDC_ERROR_TE;
 320
 321       /* Change LTDC state */
 322       hltdc->State = HAL_LTDC_STATE_ERROR;
 323
 324       /* Process unlocked */
 325       __HAL_UNLOCK(hltdc);
 326
 327       /* Transfer error Callback */
 328       HAL_LTDC_ErrorCallback(hltdc);
 329     }
 330   }
 331   /* FIFO underrun Interrupt management ***************************************/
 332   if(__HAL_LTDC_GET_FLAG(hltdc, LTDC_FLAG_FU) != RESET)
 333   {
 334     if(__HAL_LTDC_GET_IT_SOURCE(hltdc, LTDC_IT_FU) != RESET)
 335     {
 336       /* Disable the FIFO underrun interrupt */
 337       __HAL_LTDC_DISABLE_IT(hltdc, LTDC_IT_FU);
 338
 339       /* Clear the FIFO underrun flag */
 340       __HAL_LTDC_CLEAR_FLAG(hltdc, LTDC_FLAG_FU);
 341
 342       /* Update error code */
 343       hltdc->ErrorCode |= HAL_LTDC_ERROR_FU;
 344
 345       /* Change LTDC state */
 346       hltdc->State = HAL_LTDC_STATE_ERROR;
 347
 348       /* Process unlocked */
 349       __HAL_UNLOCK(hltdc);
 350
 351       /* Transfer error Callback */
 352       HAL_LTDC_ErrorCallback(hltdc);
 353     }
 354   }
 355   /* Line Interrupt management ************************************************/
 356   if(__HAL_LTDC_GET_FLAG(hltdc, LTDC_FLAG_LI) != RESET)
 357   {
 358     if(__HAL_LTDC_GET_IT_SOURCE(hltdc, LTDC_IT_LI) != RESET)
 359     {
 360       /* Disable the Line interrupt */
 361       __HAL_LTDC_DISABLE_IT(hltdc, LTDC_IT_LI);
 362
 363       /* Clear the Line interrupt flag */
 364       __HAL_LTDC_CLEAR_FLAG(hltdc, LTDC_FLAG_LI);
 365
 366       /* Change LTDC state */
 367       hltdc->State = HAL_LTDC_STATE_READY;
 368
 369       /* Process unlocked */
 370       __HAL_UNLOCK(hltdc);
 371
 372       /* Line interrupt Callback */
 373       HAL_LTDC_LineEvenCallback(hltdc);
 374     }
 375   }
 376 }
 377
 378 /**
 379   * @brief  Error LTDC callback.
 380   * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
 381   *                the configuration information for the LTDC.
 382   * @retval None
 383   */
 384 __weak void HAL_LTDC_ErrorCallback(LTDC_HandleTypeDef *hltdc)
 385 {
 386   /* NOTE : This function Should not be modified, when the callback is needed,
 387             the HAL_LTDC_ErrorCallback could be implemented in the user file
 388    */
 389 }
 390
 391 /**
 392   * @brief  Line Event callback.
 393   * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
 394   *                the configuration information for the LTDC.
 395   * @retval None
 396   */
 397 __weak void HAL_LTDC_LineEvenCallback(LTDC_HandleTypeDef *hltdc)
 398 {
 399   /* NOTE : This function Should not be modified, when the callback is needed,
 400             the HAL_LTDC_LineEvenCallback could be implemented in the user file
 401    */
 402 }
 403
 404 /**
 405   * @}
 406   */
 407
 408 /** @defgroup LTDC_Group3 Peripheral Control functions
 409  *  @brief    Peripheral Control functions
 410  *
 411 @verbatim
 412  ===============================================================================
 413                     ##### Peripheral Control functions #####
 414  ===============================================================================
 415     [..]  This section provides functions allowing to:
 416       (+) Configure the LTDC foreground or/and background parameters.
 417       (+) Set the active layer.
 418       (+) Configure the color keying.
 419       (+) Configure the C-LUT.
 420       (+) Enable / Disable the color keying.
 421       (+) Enable / Disable the C-LUT.
 422       (+) Update the layer position.
 423       (+) Update the layer size.
 424       (+) Update pixel format on the fly.
 425       (+) Update transparency on the fly.
 426       (+) Update address on the fly.
 427
 428 @endverbatim
 429   * @{
 430   */
 431
 432 /**
 433   * @brief  Configure the LTDC Layer according to the specified
 434   *         parameters in the LTDC_InitTypeDef and create the associated handle.
 435   * @param  hltdc:     pointer to a LTDC_HandleTypeDef structure that contains
 436   *                    the configuration information for the LTDC.
 437   * @param  pLayerCfg: pointer to a LTDC_LayerCfgTypeDef structure that contains
 438   *                    the configuration information for the Layer.
 439   * @param  LayerIdx:  LTDC Layer index.
 440   *                    This parameter can be one of the following values:
 441   *                    0 or 1
 442   * @retval HAL status
 443   */
 444 HAL_StatusTypeDef HAL_LTDC_ConfigLayer(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLayerCfg, uint32_t LayerIdx)
 445 {
 446   /* Process locked */
 447   __HAL_LOCK(hltdc);
 448
 449   /* Change LTDC peripheral state */
 450   hltdc->State = HAL_LTDC_STATE_BUSY;
 451
 452   /* Check the parameters */
 453   assert_param(IS_LTDC_LAYER(LayerIdx));
 454   assert_param(IS_LTDC_PIXEL_FORMAT(pLayerCfg->PixelFormat));
 455   assert_param(IS_LTDC_BLENDING_FACTOR1(pLayerCfg->BlendingFactor1));
 456   assert_param(IS_LTDC_BLENDING_FACTOR2(pLayerCfg->BlendingFactor2));
 457   assert_param(IS_LTDC_HCONFIGST(pLayerCfg->WindowX0));
 458   assert_param(IS_LTDC_HCONFIGSP(pLayerCfg->WindowX1));
 459   assert_param(IS_LTDC_VCONFIGST(pLayerCfg->WindowY0));
 460   assert_param(IS_LTDC_VCONFIGSP(pLayerCfg->WindowY1));
 461   assert_param(IS_LTDC_ALPHA(pLayerCfg->Alpha0));
 462   assert_param(IS_LTDC_CFBLL(pLayerCfg->ImageWidth));
 463   assert_param(IS_LTDC_CFBLNBR(pLayerCfg->ImageHeight));
 464
 465   /* Copy new layer configuration into handle structure */
 466   hltdc->LayerCfg[LayerIdx] = *pLayerCfg;
 467
 468   /* Configure the LTDC Layer */
 469   LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);
 470
 471   /* Sets the Reload type */
 472   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 473
 474   /* Initialize the LTDC state*/
 475   hltdc->State  = HAL_LTDC_STATE_READY;
 476
 477   /* Process unlocked */
 478   __HAL_UNLOCK(hltdc);
 479
 480   return HAL_OK;
 481 }
 482
 483 /**
 484   * @brief  Configure the color keying.
 485   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 486   *                   the configuration information for the LTDC.
 487   * @param  RGBValue: the color key value
 488   * @param  LayerIdx:  LTDC Layer index.
 489   *                   This parameter can be one of the following values:
 490   *                   0 or 1
 491   * @retval HAL status
 492   */
 493 HAL_StatusTypeDef HAL_LTDC_ConfigColorKeying(LTDC_HandleTypeDef *hltdc, uint32_t RGBValue, uint32_t LayerIdx)
 494 {
 495   /* Process locked */
 496   __HAL_LOCK(hltdc);
 497
 498   /* Change LTDC peripheral state */
 499   hltdc->State = HAL_LTDC_STATE_BUSY;
 500
 501   /* Check the parameters */
 502   assert_param(IS_LTDC_LAYER(LayerIdx));
 503
 504   /* Configures the default color values */
 505   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CKCR &=  ~(LTDC_LxCKCR_CKBLUE | LTDC_LxCKCR_CKGREEN | LTDC_LxCKCR_CKRED);
 506   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CKCR  = RGBValue;
 507
 508   /* Sets the Reload type */
 509   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 510
 511   /* Change the LTDC state*/
 512   hltdc->State = HAL_LTDC_STATE_READY;
 513
 514   /* Process unlocked */
 515   __HAL_UNLOCK(hltdc);
 516
 517   return HAL_OK;
 518 }
 519
 520 /**
 521   * @brief  Load the color lookup table.
 522   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 523   *                   the configuration information for the LTDC.
 524   * @param  pCLUT:    pointer to the color lookup table address.
 525   * @param  CLUTSize: the color lookup table size.
 526   * @param  LayerIdx:  LTDC Layer index.
 527   *                   This parameter can be one of the following values:
 528   *                   0 or 1
 529   * @retval HAL status
 530   */
 531 HAL_StatusTypeDef HAL_LTDC_ConfigCLUT(LTDC_HandleTypeDef *hltdc, uint32_t *pCLUT, uint32_t CLUTSize, uint32_t LayerIdx)
 532 {
 533   uint32_t tmp = 0;
 534   uint32_t counter = 0;
 535   uint32_t pcounter = 0;
 536
 537   /* Process locked */
 538   __HAL_LOCK(hltdc);
 539
 540   /* Change LTDC peripheral state */
 541   hltdc->State = HAL_LTDC_STATE_BUSY;
 542
 543   /* Check the parameters */
 544   assert_param(IS_LTDC_LAYER(LayerIdx));
 545
 546   for(counter = 0; (counter < CLUTSize); counter++)
 547   {
 548     tmp  = ((counter << 24) | ((uint32_t)(*pCLUT) & 0xFF) | ((uint32_t)(*pCLUT) & 0xFF00) | ((uint32_t)(*pCLUT) & 0xFF0000));
 549     pcounter = (uint32_t)pCLUT + sizeof(*pCLUT);
 550     pCLUT = (uint32_t *)pcounter;
 551
 552     /* Specifies the C-LUT address and RGB value */
 553     __HAL_LTDC_LAYER(hltdc, LayerIdx)->CLUTWR  = tmp;
 554   }
 555
 556   /* Change the LTDC state*/
 557   hltdc->State = HAL_LTDC_STATE_READY;
 558
 559   /* Process unlocked */
 560   __HAL_UNLOCK(hltdc);
 561
 562   return HAL_OK;
 563 }
 564
 565 /**
 566   * @brief  Enable the color keying.
 567   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 568   *                   the configuration information for the LTDC.
 569   * @param  LayerIdx:  LTDC Layer index.
 570   *                   This parameter can be one of the following values:
 571   *                   0 or 1
 572   * @retval  HAL status
 573   */
 574 HAL_StatusTypeDef HAL_LTDC_EnableColorKeying(LTDC_HandleTypeDef *hltdc, uint32_t LayerIdx)
 575 {
 576   /* Process locked */
 577   __HAL_LOCK(hltdc);
 578
 579   /* Change LTDC peripheral state */
 580   hltdc->State = HAL_LTDC_STATE_BUSY;
 581
 582   /* Check the parameters */
 583   assert_param(IS_LTDC_LAYER(LayerIdx));
 584
 585   /* Enable LTDC color keying by setting COLKEN bit */
 586   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CR |= (uint32_t)LTDC_LxCR_COLKEN;
 587
 588   /* Sets the Reload type */
 589   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 590
 591   /* Change the LTDC state*/
 592   hltdc->State = HAL_LTDC_STATE_READY;
 593
 594   /* Process unlocked */
 595   __HAL_UNLOCK(hltdc);
 596
 597   return HAL_OK;
 598 }
 599
 600 /**
 601   * @brief  Disable the color keying.
 602   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 603   *                   the configuration information for the LTDC.
 604   * @param  LayerIdx:  LTDC Layer index.
 605   *                   This parameter can be one of the following values:
 606   *                   0 or 1
 607   * @retval  HAL status
 608   */
 609 HAL_StatusTypeDef HAL_LTDC_DisableColorKeying(LTDC_HandleTypeDef *hltdc, uint32_t LayerIdx)
 610 {
 611   /* Process locked */
 612   __HAL_LOCK(hltdc);
 613
 614   /* Change LTDC peripheral state */
 615   hltdc->State = HAL_LTDC_STATE_BUSY;
 616
 617   /* Check the parameters */
 618   assert_param(IS_LTDC_LAYER(LayerIdx));
 619
 620   /* Disable LTDC color keying by setting COLKEN bit */
 621   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CR &= ~(uint32_t)LTDC_LxCR_COLKEN;
 622
 623   /* Sets the Reload type */
 624   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 625
 626   /* Change the LTDC state*/
 627   hltdc->State = HAL_LTDC_STATE_READY;
 628
 629   /* Process unlocked */
 630   __HAL_UNLOCK(hltdc);
 631
 632   return HAL_OK;
 633 }
 634
 635 /**
 636   * @brief  Enable the color lookup table.
 637   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 638   *                   the configuration information for the LTDC.
 639   * @param  LayerIdx:  LTDC Layer index.
 640   *                   This parameter can be one of the following values:
 641   *                   0 or 1
 642   * @retval  HAL status
 643   */
 644 HAL_StatusTypeDef HAL_LTDC_EnableCLUT(LTDC_HandleTypeDef *hltdc, uint32_t LayerIdx)
 645 {
 646
 647   /* Process locked */
 648   __HAL_LOCK(hltdc);
 649
 650   /* Change LTDC peripheral state */
 651   hltdc->State = HAL_LTDC_STATE_BUSY;
 652
 653   /* Check the parameters */
 654   assert_param(IS_LTDC_LAYER(LayerIdx));
 655
 656   /* Disable LTDC color lookup table by setting CLUTEN bit */
 657   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CR |= (uint32_t)LTDC_LxCR_CLUTEN;
 658
 659   /* Sets the Reload type */
 660   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 661
 662   /* Change the LTDC state*/
 663   hltdc->State = HAL_LTDC_STATE_READY;
 664
 665   /* Process unlocked */
 666   __HAL_UNLOCK(hltdc);
 667
 668   return HAL_OK;
 669 }
 670
 671 /**
 672   * @brief  Disable the color lookup table.
 673   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 674   *                   the configuration information for the LTDC.
 675   * @param  LayerIdx:  LTDC Layer index.
 676   *                   This parameter can be one of the following values:
 677   *                   0 or 1
 678   * @retval  HAL status
 679   */
 680 HAL_StatusTypeDef HAL_LTDC_DisableCLUT(LTDC_HandleTypeDef *hltdc, uint32_t LayerIdx)
 681 {
 682
 683   /* Process locked */
 684   __HAL_LOCK(hltdc);
 685
 686   /* Change LTDC peripheral state */
 687   hltdc->State = HAL_LTDC_STATE_BUSY;
 688
 689   /* Check the parameters */
 690   assert_param(IS_LTDC_LAYER(LayerIdx));
 691
 692   /* Disable LTDC color lookup table by setting CLUTEN bit */
 693   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CR &= ~(uint32_t)LTDC_LxCR_CLUTEN;
 694
 695   /* Sets the Reload type */
 696   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 697
 698   /* Change the LTDC state*/
 699   hltdc->State = HAL_LTDC_STATE_READY;
 700
 701   /* Process unlocked */
 702   __HAL_UNLOCK(hltdc);
 703
 704   return HAL_OK;
 705 }
 706
 707 /**
 708   * @brief  Enables Dither.
 709   * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
 710   *                the configuration information for the LTDC.
 711   * @retval  HAL status
 712   */
 713
 714 HAL_StatusTypeDef HAL_LTDC_EnableDither(LTDC_HandleTypeDef *hltdc)
 715 {
 716   /* Process locked */
 717   __HAL_LOCK(hltdc);
 718
 719   /* Change LTDC peripheral state */
 720   hltdc->State = HAL_LTDC_STATE_BUSY;
 721
 722   /* Enable Dither by setting DTEN bit */
 723   LTDC->GCR |= (uint32_t)LTDC_GCR_DTEN;
 724
 725   /* Change the LTDC state*/
 726   hltdc->State = HAL_LTDC_STATE_READY;
 727
 728   /* Process unlocked */
 729   __HAL_UNLOCK(hltdc);
 730
 731   return HAL_OK;
 732 }
 733
 734 /**
 735   * @brief  Disables Dither.
 736   * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
 737   *                the configuration information for the LTDC.
 738   * @retval  HAL status
 739   */
 740
 741 HAL_StatusTypeDef HAL_LTDC_DisableDither(LTDC_HandleTypeDef *hltdc)
 742 {
 743   /* Process locked */
 744   __HAL_LOCK(hltdc);
 745
 746   /* Change LTDC peripheral state */
 747   hltdc->State = HAL_LTDC_STATE_BUSY;
 748
 749   /* Disable Dither by setting DTEN bit */
 750   LTDC->GCR &= ~(uint32_t)LTDC_GCR_DTEN;
 751
 752   /* Change the LTDC state*/
 753   hltdc->State = HAL_LTDC_STATE_READY;
 754
 755   /* Process unlocked */
 756   __HAL_UNLOCK(hltdc);
 757
 758   return HAL_OK;
 759 }
 760
 761 /**
 762   * @brief  Set the LTDC window size.
 763   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 764   *                   the configuration information for the LTDC.
 765   * @param  XSize:    LTDC Pixel per line
 766   * @param  YSize:    LTDC Line number
 767   * @param  LayerIdx:  LTDC Layer index.
 768   *                   This parameter can be one of the following values:
 769   *                   0 or 1
 770   * @retval  HAL status
 771   */
 772 HAL_StatusTypeDef HAL_LTDC_SetWindowSize(LTDC_HandleTypeDef *hltdc, uint32_t XSize, uint32_t YSize, uint32_t LayerIdx)
 773 {
 774   LTDC_LayerCfgTypeDef *pLayerCfg;
 775
 776   /* Process locked */
 777   __HAL_LOCK(hltdc);
 778
 779   /* Change LTDC peripheral state */
 780   hltdc->State = HAL_LTDC_STATE_BUSY;
 781
 782   /* Get layer configuration from handle structure */
 783   pLayerCfg = &hltdc->LayerCfg[LayerIdx];
 784
 785   /* Check the parameters (Layers parameters)*/
 786   assert_param(IS_LTDC_LAYER(LayerIdx));
 787   assert_param(IS_LTDC_HCONFIGST(pLayerCfg->WindowX0));
 788   assert_param(IS_LTDC_HCONFIGSP(pLayerCfg->WindowX1));
 789   assert_param(IS_LTDC_VCONFIGST(pLayerCfg->WindowY0));
 790   assert_param(IS_LTDC_VCONFIGSP(pLayerCfg->WindowY1));
 791   assert_param(IS_LTDC_CFBLL(XSize));
 792   assert_param(IS_LTDC_CFBLNBR(YSize));
 793
 794   /* update horizontal start/stop */
 795   pLayerCfg->WindowX0 = 0;
 796   pLayerCfg->WindowX1 = XSize + pLayerCfg->WindowX0;
 797
 798   /* update vertical start/stop */
 799   pLayerCfg->WindowY0 = 0;
 800   pLayerCfg->WindowY1 = YSize + pLayerCfg->WindowY0;
 801
 802   /* Reconfigures the color frame buffer pitch in byte */
 803   pLayerCfg->ImageWidth = XSize;
 804
 805   /* Reconfigures the frame buffer line number */
 806   pLayerCfg->ImageHeight = YSize;
 807
 808   /* Set LTDC parameters */
 809   LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);
 810
 811   /* Sets the Reload type */
 812   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 813
 814   /* Change the LTDC state*/
 815   hltdc->State = HAL_LTDC_STATE_READY;
 816
 817   /* Process unlocked */
 818   __HAL_UNLOCK(hltdc);
 819
 820   return HAL_OK;
 821 }
 822
 823 /**
 824   * @brief  Set the LTDC window position.
 825   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 826   *                   the configuration information for the LTDC.
 827   * @param  X0:       LTDC window X offset
 828   * @param  Y0:       LTDC window Y offset
 829   * @param  LayerIdx:  LTDC Layer index.
 830   *                         This parameter can be one of the following values:
 831   *                         0 or 1
 832   * @retval  HAL status
 833   */
 834 HAL_StatusTypeDef HAL_LTDC_SetWindowPosition(LTDC_HandleTypeDef *hltdc, uint32_t X0, uint32_t Y0, uint32_t LayerIdx)
 835 {
 836   LTDC_LayerCfgTypeDef *pLayerCfg;
 837
 838   /* Process locked */
 839   __HAL_LOCK(hltdc);
 840
 841   /* Change LTDC peripheral state */
 842   hltdc->State = HAL_LTDC_STATE_BUSY;
 843
 844   /* Get layer configuration from handle structure */
 845   pLayerCfg = &hltdc->LayerCfg[LayerIdx];
 846
 847   /* Check the parameters */
 848   assert_param(IS_LTDC_LAYER(LayerIdx));
 849   assert_param(IS_LTDC_HCONFIGST(pLayerCfg->WindowX0));
 850   assert_param(IS_LTDC_HCONFIGSP(pLayerCfg->WindowX1));
 851   assert_param(IS_LTDC_VCONFIGST(pLayerCfg->WindowY0));
 852   assert_param(IS_LTDC_VCONFIGSP(pLayerCfg->WindowY1));
 853
 854   /* update horizontal start/stop */
 855   pLayerCfg->WindowX0 = X0;
 856   pLayerCfg->WindowX1 = X0 + pLayerCfg->ImageWidth;
 857
 858   /* update vertical start/stop */
 859   pLayerCfg->WindowY0 = Y0;
 860   pLayerCfg->WindowY1 = Y0 + pLayerCfg->ImageHeight;
 861
 862   /* Set LTDC parameters */
 863   LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);
 864
 865   /* Sets the Reload type */
 866   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 867
 868   /* Change the LTDC state*/
 869   hltdc->State = HAL_LTDC_STATE_READY;
 870
 871   /* Process unlocked */
 872   __HAL_UNLOCK(hltdc);
 873
 874   return HAL_OK;
 875 }
 876
 877 /**
 878   * @brief  Reconfigure the pixel format.
 879   * @param  hltdc:       pointer to a LTDC_HandleTypeDef structure that contains
 880   *                      the configuration information for the LTDC.
 881   * @param  Pixelformat: new pixel format value.
 882   * @param  LayerIdx:    LTDC Layer index.
 883   *                      This parameter can be one of the following values:
 884   *                      0 or 1.
 885   * @retval  HAL status
 886   */
 887 HAL_StatusTypeDef HAL_LTDC_SetPixelFormat(LTDC_HandleTypeDef *hltdc, uint32_t Pixelformat, uint32_t LayerIdx)
 888 {
 889   LTDC_LayerCfgTypeDef *pLayerCfg;
 890
 891   /* Process locked */
 892   __HAL_LOCK(hltdc);
 893
 894   /* Change LTDC peripheral state */
 895   hltdc->State = HAL_LTDC_STATE_BUSY;
 896
 897   /* Check the parameters */
 898   assert_param(IS_LTDC_LAYER(LayerIdx));
 899   assert_param(IS_LTDC_PIXEL_FORMAT(Pixelformat));
 900
 901   /* Get layer configuration from handle structure */
 902   pLayerCfg = &hltdc->LayerCfg[LayerIdx];
 903
 904   /* Reconfigure the pixel format */
 905   pLayerCfg->PixelFormat = Pixelformat;
 906
 907   /* Set LTDC parameters */
 908   LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);
 909
 910   /* Sets the Reload type */
 911   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 912
 913   /* Change the LTDC state*/
 914   hltdc->State = HAL_LTDC_STATE_READY;
 915
 916   /* Process unlocked */
 917   __HAL_UNLOCK(hltdc);
 918
 919   return HAL_OK;
 920 }
 921
 922 /**
 923   * @brief  Reconfigure the layer alpha value.
 924   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 925   *                   the configuration information for the LTDC.
 926   * @param  Alpha:    new alpha value.
 927   * @param  LayerIdx:  LTDC Layer index.
 928   *                   This parameter can be one of the following values:
 929   *                   0 or 1
 930   * @retval  HAL status
 931   */
 932 HAL_StatusTypeDef HAL_LTDC_SetAlpha(LTDC_HandleTypeDef *hltdc, uint32_t Alpha, uint32_t LayerIdx)
 933 {
 934   LTDC_LayerCfgTypeDef *pLayerCfg;
 935
 936   /* Process locked */
 937   __HAL_LOCK(hltdc);
 938
 939   /* Change LTDC peripheral state */
 940   hltdc->State = HAL_LTDC_STATE_BUSY;
 941
 942   /* Check the parameters */
 943   assert_param(IS_LTDC_ALPHA(Alpha));
 944   assert_param(IS_LTDC_LAYER(LayerIdx));
 945
 946   /* Get layer configuration from handle structure */
 947   pLayerCfg = &hltdc->LayerCfg[LayerIdx];
 948
 949   /* Reconfigure the Alpha value */
 950   pLayerCfg->Alpha = Alpha;
 951
 952   /* Set LTDC parameters */
 953   LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);
 954
 955   /* Sets the Reload type */
 956   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
 957
 958   /* Change the LTDC state*/
 959   hltdc->State = HAL_LTDC_STATE_READY;
 960
 961   /* Process unlocked */
 962   __HAL_UNLOCK(hltdc);
 963
 964   return HAL_OK;
 965 }
 966 /**
 967   * @brief  Reconfigure the frame buffer Address.
 968   * @param  hltdc:    pointer to a LTDC_HandleTypeDef structure that contains
 969   *                   the configuration information for the LTDC.
 970   * @param  Address:  new address value.
 971   * @param  LayerIdx: LTDC Layer index.
 972   *                   This parameter can be one of the following values:
 973   *                   0 or 1.
 974   * @retval  HAL status
 975   */
 976 HAL_StatusTypeDef HAL_LTDC_SetAddress(LTDC_HandleTypeDef *hltdc, uint32_t Address, uint32_t LayerIdx)
 977 {
 978   LTDC_LayerCfgTypeDef *pLayerCfg;
 979
 980   /* Process locked */
 981   __HAL_LOCK(hltdc);
 982
 983   /* Change LTDC peripheral state */
 984   hltdc->State = HAL_LTDC_STATE_BUSY;
 985
 986   /* Check the parameters */
 987   assert_param(IS_LTDC_LAYER(LayerIdx));
 988
 989   /* Get layer configuration from handle structure */
 990   pLayerCfg = &hltdc->LayerCfg[LayerIdx];
 991
 992   /* Reconfigure the Address */
 993   pLayerCfg->FBStartAdress = Address;
 994
 995   /* Set LTDC parameters */
 996   LTDC_SetConfig(hltdc, pLayerCfg, LayerIdx);
 997
 998   /* Sets the Reload type */
 999   hltdc->Instance->SRCR = LTDC_SRCR_IMR;
1000
1001   /* Change the LTDC state*/
1002   hltdc->State = HAL_LTDC_STATE_READY;
1003
1004   /* Process unlocked */
1005   __HAL_UNLOCK(hltdc);
1006
1007   return HAL_OK;
1008 }
1009
1010 /**
1011   * @brief  Define the position of the line interrupt .
1012   * @param  hltdc:             pointer to a LTDC_HandleTypeDef structure that contains
1013   *                            the configuration information for the LTDC.
1014   * @param  Line:   Line Interrupt Position.
1015   * @retval  HAL status
1016   */
1017 HAL_StatusTypeDef HAL_LTDC_ProgramLineEvent(LTDC_HandleTypeDef *hltdc, uint32_t Line)
1018 {
1019   /* Process locked */
1020   __HAL_LOCK(hltdc);
1021
1022   /* Change LTDC peripheral state */
1023   hltdc->State = HAL_LTDC_STATE_BUSY;
1024
1025   /* Check the parameters */
1026   assert_param(IS_LTDC_LIPOS(Line));
1027
1028   /* Enable the Line interrupt */
1029   __HAL_LTDC_ENABLE_IT(hltdc, LTDC_IT_LI);
1030
1031   /* Sets the Line Interrupt position */
1032   LTDC->LIPCR = (uint32_t)Line;
1033
1034   /* Change the LTDC state*/
1035   hltdc->State = HAL_LTDC_STATE_READY;
1036
1037   /* Process unlocked */
1038   __HAL_UNLOCK(hltdc);
1039
1040   return HAL_OK;
1041 }
1042
1043 /**
1044   * @}
1045   */
1046
1047 /** @defgroup LTDC_Group4 Peripheral State and Errors functions
1048  *  @brief    Peripheral State and Errors functions
1049  *
1050 @verbatim
1051  ===============================================================================
1052                   ##### Peripheral State and Errors functions #####
1053  ===============================================================================
1054     [..]
1055     This subsection provides functions allowing to
1056       (+) Check the LTDC state.
1057       (+) Get error code.
1058
1059 @endverbatim
1060   * @{
1061   */
1062
1063 /**
1064   * @brief  Return the LTDC state
1065   * @param  hltdc: pointer to a LTDC_HandleTypeDef structure that contains
1066   *                the configuration information for the LTDC.
1067   * @retval HAL state
1068   */
1069 HAL_LTDC_StateTypeDef HAL_LTDC_GetState(LTDC_HandleTypeDef *hltdc)
1070 {
1071   return hltdc->State;
1072 }
1073
1074 /**
1075 * @brief  Return the LTDC error code
1076 * @param  hltdc : pointer to a LTDC_HandleTypeDef structure that contains
1077   *               the configuration information for the LTDC.
1078 * @retval LTDC Error Code
1079 */
1080 uint32_t HAL_LTDC_GetError(LTDC_HandleTypeDef *hltdc)
1081 {
1082   return hltdc->ErrorCode;
1083 }
1084
1085 /**
1086   * @}
1087   */
1088
1089 /**
1090   * @brief  Configures the LTDC peripheral
1091   * @param  hltdc   :  Pointer to a LTDC_HandleTypeDef structure that contains
1092   *                   the configuration information for the LTDC.
1093   * @param  pLayerCfg: Pointer LTDC Layer Configuration strusture
1094   * @param  LayerIdx:  LTDC Layer index.
1095   *                    This parameter can be one of the following values: 0 or 1
1096   * @retval None
1097   */
1098 static void LTDC_SetConfig(LTDC_HandleTypeDef *hltdc, LTDC_LayerCfgTypeDef *pLayerCfg, uint32_t LayerIdx)
1099 {
1100   uint32_t tmp = 0;
1101   uint32_t tmp1 = 0;
1102   uint32_t tmp2 = 0;
1103
1104   /* Configures the horizontal start and stop position */
1105   tmp = ((pLayerCfg->WindowX1 + ((hltdc->Instance->BPCR & LTDC_BPCR_AHBP) >> 16)) << 16);
1106   __HAL_LTDC_LAYER(hltdc, LayerIdx)->WHPCR &= ~(LTDC_LxWHPCR_WHSTPOS | LTDC_LxWHPCR_WHSPPOS);
1107   __HAL_LTDC_LAYER(hltdc, LayerIdx)->WHPCR = ((pLayerCfg->WindowX0 + ((hltdc->Instance->BPCR & LTDC_BPCR_AHBP) >> 16) + 1) | tmp);
1108
1109   /* Configures the vertical start and stop position */
1110   tmp = ((pLayerCfg->WindowY1 + (hltdc->Instance->BPCR & LTDC_BPCR_AVBP)) << 16);
1111   __HAL_LTDC_LAYER(hltdc, LayerIdx)->WVPCR &= ~(LTDC_LxWVPCR_WVSTPOS | LTDC_LxWVPCR_WVSPPOS);
1112   __HAL_LTDC_LAYER(hltdc, LayerIdx)->WVPCR  = ((pLayerCfg->WindowY0 + (hltdc->Instance->BPCR & LTDC_BPCR_AVBP) + 1) | tmp);
1113
1114   /* Specifies the pixel format */
1115   __HAL_LTDC_LAYER(hltdc, LayerIdx)->PFCR &= ~(LTDC_LxPFCR_PF);
1116   __HAL_LTDC_LAYER(hltdc, LayerIdx)->PFCR = (pLayerCfg->PixelFormat);
1117
1118   /* Configures the default color values */
1119   tmp = ((uint32_t)(pLayerCfg->Backcolor.Green) << 8);
1120   tmp1 = ((uint32_t)(pLayerCfg->Backcolor.Red) << 16);
1121   tmp2 = (pLayerCfg->Alpha0 << 24);
1122   __HAL_LTDC_LAYER(hltdc, LayerIdx)->DCCR &= ~(LTDC_LxDCCR_DCBLUE | LTDC_LxDCCR_DCGREEN | LTDC_LxDCCR_DCRED | LTDC_LxDCCR_DCALPHA);
1123   __HAL_LTDC_LAYER(hltdc, LayerIdx)->DCCR = (pLayerCfg->Backcolor.Blue | tmp | tmp1 | tmp2);
1124
1125   /* Specifies the constant alpha value */
1126   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CACR &= ~(LTDC_LxCACR_CONSTA);
1127   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CACR = (pLayerCfg->Alpha);
1128
1129   /* Specifies the blending factors */
1130   __HAL_LTDC_LAYER(hltdc, LayerIdx)->BFCR &= ~(LTDC_LxBFCR_BF2 | LTDC_LxBFCR_BF1);
1131   __HAL_LTDC_LAYER(hltdc, LayerIdx)->BFCR = (pLayerCfg->BlendingFactor1 | pLayerCfg->BlendingFactor2);
1132
1133   /* Configures the color frame buffer start address */
1134   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CFBAR &= ~(LTDC_LxCFBAR_CFBADD);
1135   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CFBAR = (pLayerCfg->FBStartAdress);
1136
1137   if(pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_ARGB8888)
1138   {
1139     tmp = 4;
1140   }
1141   else if (pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_RGB888)
1142   {
1143     tmp = 3;
1144   }
1145   else if((pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_ARGB4444) || \
1146     (pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_RGB565)   || \
1147       (pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_ARGB1555) || \
1148         (pLayerCfg->PixelFormat == LTDC_PIXEL_FORMAT_AL88))
1149   {
1150     tmp = 2;
1151   }
1152   else
1153   {
1154     tmp = 1;
1155   }
1156
1157   /* Configures the color frame buffer pitch in byte */
1158   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CFBLR  &= ~(LTDC_LxCFBLR_CFBLL | LTDC_LxCFBLR_CFBP);
1159   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CFBLR  = (((pLayerCfg->ImageWidth * tmp) << 16) | ((pLayerCfg->ImageWidth * tmp)  + 3));
1160
1161   /* Configures the frame buffer line number */
1162   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CFBLNR  &= ~(LTDC_LxCFBLNR_CFBLNBR);
1163   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CFBLNR  = (pLayerCfg->ImageHeight);
1164
1165   /* Enable LTDC_Layer by setting LEN bit */
1166   __HAL_LTDC_LAYER(hltdc, LayerIdx)->CR |= (uint32_t)LTDC_LxCR_LEN;
1167 }
1168
1169 /**
1170   * @}
1171   */
1172 #endif /* STM32F429xx || STM32F439xx */
1173 #endif /* HAL_LTDC_MODULE_ENABLED */
1174 /**
1175   * @}
1176   */
1177
1178 /**
1179   * @}
1180   */
1181
1182 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/